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1999: A discussion on the Proterozoic stratigraphy framework in the basement of eastern section of the Mid Qilian Massif. Geological Bulletin of China, 18(4): 379-382+396.
Citation: 1999: A discussion on the Proterozoic stratigraphy framework in the basement of eastern section of the Mid Qilian Massif. Geological Bulletin of China, 18(4): 379-382+396.
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A discussion on the Proterozoic stratigraphy framework in the basement of eastern section of the Mid Qilian Massif

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  • Received Date: May 16, 1998
  • Available Online: August 16, 2023
  • Published Date: November 14, 1999
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    • Abstract
  • It is generally considered that the basement of the eastern part of Mid Qilian Massif consists of three stratigraphic sequences that are separated by parallel unconformable boundaries:the Paleoproterozoic Huangyuan Group,Mesoproterozoic Huangzhong Group and Huashishan Group.However,recent study suggest that(1)The Huashishan Group unconformably overlies the Huangyuan Group at angle,and paleontological data suggests that the Huashishan Group represents a stable sedimentary cover of Sinian to Cambrian age,rather than basement.(2)The Huangyuan Group and Huangzhong Group were formed in the same tectonic cycle and should be combined as Huangyuan Group.
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